Change teh exception
diff --git a/docs/hazmat/primitives/padding.rst b/docs/hazmat/primitives/padding.rst
index aebb4d4..4d79ac8 100644
--- a/docs/hazmat/primitives/padding.rst
+++ b/docs/hazmat/primitives/padding.rst
@@ -25,8 +25,14 @@
>>> padder = padding.PKCS7(128).padder()
>>> padder.update(b"1111111111")
''
- >>> padder.finalize()
+ >>> padded_data = padder.finalize()
+ >>> padded_data
'1111111111\x06\x06\x06\x06\x06\x06'
+ >>> unpadder = padding.PKCS7(128).unpadder()
+ >>> unpadder.update(padded_data)
+ ''
+ >>> unpadder.finalize()
+ '1111111111'
:param block_size: The size of the block in bits that the data is being
padded to.